add 70 mL of distilled water to a clean 100 mL beaker. Obtain a dropper bottle that contains 1.0 M salt solution.
Switch on the Conductivity Probe to the 0-2000 S/cm range. Set up EasyData for data collection. a) Select Events With Entry. b) Name the column Volume and unit drops.
Before adding any drops of solution measure the conductivity of the solution. Select keep. type in 0, the volume in drops on the calculator. select ok to save the fist data pair for this experiment.
Add 1 drop of salt solution to the distilled water. Stir to ensure thorough mixing and measure the conductivity. select keep then type 1 as the volume in drops then select ok.
continue this procedure, adding 1 drop portions of solution, measuring conductivity, and entering the total number of drops added- until a total of 8 drops has been added. Select stop when you have finished collecting data.
Reheat the crucible for five minutes. Let cool. Re-measure its mass.
Record mass of crucible and contents.
Turn off the burner. Allow the sample to cool for about ten minutes.
Gently heat the crucible and compound.
Measure and record the mass of the crucible and the compound
Measure and record the mass of a clean, dry, crucible.
Lead
Silicon
Tin
Carefully add metal to the graduated cylinder. Measure and record the volume displacement of the water and mass. Add more metal. Record the new volume and mass. Repeat for a third measurement. Repeat process with all three metals; Tin, Silicon, and Lead.
Place the graduated cylinder on a blanance and zero the measurement.
Fill a 25 mL graduated cylinder exactly to the 10 mL mark. Record.
Lavosier a liar? Can matter really neither be created nor destroyed?
Measure and record the mass of empty beaker A. Then add exactly 0.7500 g of compound A. Add about 20.0 mL of distilled water. Dissolve the compound.
Measure and record the mass of an empty beaker B. then add exactly 1.2000 g of compound B to beaker B. Add about 30 mL of distilled water. Dissolve the compound.
Slowly add solution B to solution A. Make sure that you add all of the compound in the beaker by rinsing with a little distilled water. The reaction will cause a solid to appear at the bottom of the beaker
Determine the mass of a piece of filter paper. Then fold the paper and place it into a funnel
Filter the solution from beaker A into beaker B, while keeping the solid in the bottom of beaker A
When all of the liquid has been filtered, remove the filter paper with forceps and place into beaker A to dry. When dry, record the mass of the beakers.
The graph shows that the height of the person who committed the crime was about 62 inches tall, according to the size of the smallest footprint. The suspect who is closest to that height is Penelope Paige. She is 64 inches tall, so the average shoe size for someone of her height would be about 10 inches, but she could’ve smudged her footprint to make it appear larger. I think that Penelope Paige is the murderer.
The graph shows that the height of the person who committed the crime was about 62 inches tall, according to the size of the smallest footprint. The suspect who is closest to that height is Penelope Paige. She is 64 inches tall, so the average shoe size for someone of her height would be about 10 inches, but she could’ve smudged her footprint to make it appear larger. I think that Penelope Paige is the murderer.